Official Journal of the Italian Society of Orthopaedics and Traumatology
Independent variable | Regression coefficient | 95% Confidence interval | P value |
---|---|---|---|
Age (years) | 0.021 (.017) | −0.13 to 0.054 | 0.230 |
Preoperative hemoglobin concentration (g/dl) | −0.642 (0.157) | −0.952 to −0.332 | <0.001* |
Blood loss (g/dl) | 0.752 | 0.499–1.006 | <0.001* |